Employment, U.S., 1860-1970, annual        
  4.0 
  5.4 
  3.0 
 11.7 
 18.4 
 13.7 
 14.4 
 14.5 
 12.4 
  6.5 
  5.0 
  4.0 
  3.7 
  3.9 
  5.4 
  4.3 
  1.7 
  2.8 
  8.0 
  5.1 
  5.9 
  6.7 
  4.6 
  4.3 
  7.9 
  8.5 
  5.1 
  4.6 
  1.4 
  1.4 
  5.2 
 11.7 
  6.7 
  2.4 
  5.0 
  3.2 
  1.8 
  3.3 
  4.2 
  3.2 
  8.7 
 15.9 
 23.6 
 24.9 
 21.7 
 20.1 
 16.9 
 14.3 
 19.0 
 17.2 
 14.6 
  9.9 
  4.7 
  1.9 
  1.2 
  1.9 
  3.9 
  3.9 
  3.8 
  5.9 
  5.3 
  3.3 
  3.0 
  2.9 
  5.5 
  4.4 
  4.1 
  4.3 
  6.8 
  5.5 
  5.5 
  6.7 
  5.5 
  5.7 
  5.2 
  4.5 
  3.8 
  3.8 
  3.6 
  3.5 
  4.9 
